Questions
What does it mean to have a 2 or 3 year growing season cycle in plants...

What does it mean to have a 2 or 3 year growing season cycle in plants ? What are consequences and examples if there occur any syndrome because of having 2 or 3 year growing cycle of a tree?

In: Biology

How does size affect the rate of diffusion? Size doesn't matter. Large molecules diffuse faster. Small...

How does size affect the rate of diffusion?

Size doesn't matter.

Large molecules diffuse faster.

Small molecules diffuse faster.

The first step taken when looking through the oculars of a microscope is to adjust the oculars until only one circle of light can be viewed.

T/F

A serial dilution is conducted in order to create a solution of higher concentration.

True

False

Glucose has a molecular weight of 180 g/mol. Starch has a molecular weight that varies, but is at least 342 g/mol. Which substance is less likely to cross a dialysis membrane?

glucose

starch

In: Biology

Describe the role of the troponin-tropomyosin complex and the role of calcium ions in skeletal and...

Describe the role of the troponin-tropomyosin complex and the role of calcium ions in skeletal and cardiac muscle contraction.

In: Biology

Why would overexpression of RTK (Receptor Tyrosine Kinase) lead to an oncogenic phenotype (describe the mechanism)?

Why would overexpression of RTK (Receptor Tyrosine Kinase) lead to an oncogenic phenotype (describe the mechanism)?

In: Biology

Recall that the Hoopoe birds are getting cancer because of the HCP retrovirus – take a...

Recall that the Hoopoe birds are getting cancer because of the HCP retrovirus – take a look at the viral transforming gene, v-hcp compared to the c-hcp/mtk gene (above). (v-hcp lacks a ligand binding domain) Is a mAb therapy strategy likely to be useful in treating the virally-caused cancer? Briefly explain.

In: Biology

Give one example of how you would assay for overexpression of RTK (Receptor Tyrosine Kinase). Would...

Give one example of how you would assay for overexpression of RTK (Receptor Tyrosine Kinase). Would it be an immune complex kinase assay then determine if it's a tyrosine kinase? I'm not sure.

In: Biology

Your Smith textbook lists several methods of removing lesions. Select one method of removal and locate...

Your Smith textbook lists several methods of removing lesions. Select one method of removal and locate a more specific description of that type of removal. (For example, Removal of skin tags. Skin tags can be removed by cutting, cryosurgery, and electrosurgery etc. You would then go into the details of these different methods.). Make sure to include your sources. Respond to two classmates with a scenario for the skin lesion that they selected and the applicable CPT codes. This should not be an example from anywhere in the book. It need not be overly complex, but it shouldn't be overly easy either. Be sure to include the necessary information in your scenario (size, body part, number of lesions etc).

In: Biology

Compare and contrast web builders and lie-n-wait spiders with respect to costs and benefits of their...

Compare and contrast web builders and lie-n-wait spiders with respect to costs and benefits of their mode of prey capture.

please answer the question completely, but in easily in a simple way. Thank you very much in advance for your help. Please give a chance to other expert to answer this if you are not sure what the question really asks for. Thank you :)

In: Biology

how to form a hypothesis with these the Arf-GAP with Rho-GAP domain, ANK repeat, and PH...

how to form a hypothesis with these the Arf-GAP with Rho-GAP domain, ANK repeat, and PH domain-containing protein ( ARAP) family of proteins.

In: Biology

Describe two methods of studying the evolution of silk production and use in spiders. In other...

Describe two methods of studying the evolution of silk production and use in spiders. In other words, how could you gain insight into how this complex morphological and behavioral suite of characters evolved?

Please answer the question completely, but easily in a simple way. Thank you very much in advance for you help. Please give a chance to other expert to answer this question if you are not really sure what the question asks for. Thank you :)

In: Biology

10. A large territory of the primary somatosensory cortex (S1) in rodents is responsive to vibrissa...

10. A large territory of the primary somatosensory cortex (S1) in rodents is responsive to vibrissa (whisker) deflection. Within S1, inputs from each vibrissa are organized into anatomically distinguishable clusters of neurons called barrels. One barrel represents one vibrissa.

  1. How experimentally might we reduce the size of a cortical barrel in S1?
  2. How might we increase the size of a cortical barrel?

In: Biology

WHAT DO YOU THINK ABOUT THE DIVERSITY IN TODAY'S MULTIRACIAL OFFSPRING?

WHAT DO YOU THINK ABOUT THE DIVERSITY IN TODAY'S MULTIRACIAL OFFSPRING?

In: Biology

How to connect lung cancer with the following: C1. analyse the economic and environmental advantages and...

How to connect lung cancer with the following:

C1. analyse the economic and environmental advantages and disadvantages of an artificial selection
technology, and evaluate the impact of environmental changes on natural selection and endangered species;
C2. investigate evolutionary processes, and analyse scientific evidence that supports the theory of evolution;
C3. demonstrate an understanding of the theory of evolution, the evidence that supports it, and some of the
mechanisms by which it occurs.

We have to write an essay with these categories, please give some idea and explain what each mean to me.

In: Biology

FOR THIS ESSAY IT IS ABOUT 1,200 WORDS. DARWIN WAS NOT THE FIRST TO CONSIDER EVOLUTION...

FOR THIS ESSAY IT IS ABOUT 1,200 WORDS.

DARWIN WAS NOT THE FIRST TO CONSIDER EVOLUTION AS A PROCESS BUT HE DID COME UP WITH THE FIRST EFFECTIVE EXPLANATION FOR HOW IT HAPPENS. DESCRIBE DARWIN'S THEORY OF EVOLUTION BY NATURAL SELECTIONS. EXPLAIN HOW THIS THEORY WAS A MAJOR ADVANCE OVER PRIOR IDEAS AS TO HOW ORGANISMS CHANGED OVERTIME. GIVE EVIDENCE IN SUPPORT OF EVOLUTION AND DESCRIBE THE DRIVING FORCES FR EVOLUTIONARY CHANGE.

In: Biology

Similarities and differences between the domains provide contradictory information about their potential origins. How do lipid...

Similarities and differences between the domains provide contradictory information about their

potential origins. How do lipid structures contribute to this controversy

In: Biology