Biology

Which innate immune functions provide immediate protection from foreign antigens? Select all that apply. Phagocytosis of identified foreign cells External secretions neutralizing antigens Stomach acid-destroying bacteria Identifying malignant cells as foreign Synthesizing active immunoglobulins

Question 14: How do geographic patterns support the idea of common descent? a) By showing identical species across the globe b) By demonstrating similar adaptations in species that inhabit similar environments c) By proving that species never change d) By showing that all species appear randomly 1 poi

Question 09: Pesticide resistance in insects is an example of: a) Mutations that prevent evolution b) Artificial selection eliminating variation c) Natural selection driving adaptation to human intervention d) Fossil evidence disproving evolution

How many alleles does ONE gamete carry for each trait? one millions two

Which of these carbohydrates is the storage form of glucose in animals? starch glycogen fiber glucose

Every cell in the body needs __ carbohydrates protein fats

Scientists have been attempting to clone animals since the late 1800s, but it was only in 1996 that they successfully cloned the first mammal:a sheep named Dolly.Building on decades of research, lan Wilmut experimented with the nucleus of a cell which is the part that contains DNA. A clone has the same DNA as the original animal.so Wilmut had to figure out how to transfer DNA from one cell to another. To create Dolly, Wilmut took skin cells from the sheep he wanted to clone. Then he took an egg from a different female sheep. This egg already contained a nucleus with its own DNA. but Wilmut wanted it to have the DNA of the sheep he was cloning, In order to do that, he replaced the egg's nucleus with a nucleus from the original sheep's skin cells Then, he placed that new cell into another female sheep, who became pregnant with the clone Dolly. Directions - Use information from the text to finish the sentence. - Put the Information in your own words. Cloning mammals is scientifically possible, but 2 of 5 attempts Getfeedback E Feedback Add specific information from the text. What is one of the downsides of cloning? Report a problem

The high rate of mutations found in viruses is the main reason why designing and devloping antivirals is difficult. True False

Which of the following gives a purpose for the cultivation of viruses? a. for research b. to isolate the virus from a clinical specimen c. to identify the virus found in a clinical specimen d. for the preparation of vaccines e. all of the given choices are correct

The bacteriophage capsid adsorbs to the host cell but does not penetrate through the cell. True False