BIOLOGY MIDDLE SCHOOL

State why telescopes that detect non-optical radiation are useful for studying objects in space.

Answers

Answer 1
Answer: because radiation goes a long way. Radiation itself isn't visable but if it's from a nearby star you'll be able to see the star. Radiation keeps moving outwards forever. Things that can sense radiation that you can't see will help you have an idea how far away the source of that radiation is from
Answer 2
Answer: because some objects emit radiation that only an x-ray telescope would show,something that an optical one wouldn't pick up in space

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In order for chemical digestion to occur, what has to be mixed with the food?

Answers

Well in order for chemical digestion to occur period, a enzyme is needed.

In the mouth this enzyme is amylase

What kind of force exists when all the forces cancel each other out (net force= 0N)?A. non-contact
B. contact
C. balanced
D. un-balanced

Answers

Balanced force exists when all forces cancel each other out. Un-balanced force would be a man shoving another man. Non contact force is a force that doesn't touch you, like weight. Contact force would be like a elephant standing on-top of a ball. Therefore C. is the answer.

HELP!! dihybrid crosses

Answers

Answer:

Predicting the genotype of offspring. Determine all possible combinations of alleles in the gametes for each parent. Half of the gametes get a dominant S and a dominant Y allele; the other half of the gametes get a recessive s and a recessive y allele. Both parents produce 25% each of SY, Sy, sY, and sy.

Explanation:

This is an example of how you complete the problem. I hope this helps! :)

Final answer:

A dihybrid cross is a breeding experiment that shows how two distinct traits are passed from parents to offspring. It's done using a Punnett square to determine the probability of offspring combinations.

Explanation:

A dihybrid cross is a breeding experiment that involves parents that differ in two distinct, genetically determined traits. In the study of genetics, The aim of a dihybrid cross is to determine the likelihood of offspring inheriting combinations of traits from their parents.

For instance, let's consider an example of crossing two pea plants. One possesses the traits for being tall with yellow seeds (TTYY) and the other being short with green seeds (ttyy). We can observe a dihybrid cross to predict the progeny's traits.

To do so, a Punnett square is used to visualize all the potential combinations of gametes resulting from meiosis. Later, these combinations can be analyzed to find out the probability of an offspring manifesting a certain combination of traits.

In short, dihybrid crosses provide a systematic method to study how traits are passed on to offspring generation. Its findings are fundamental to understanding the principles of genetics.

Learn more about Dihybrid Crosses here:

brainly.com/question/27675873

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Give an example of co-evolution between orchids and pollinators

Answers

Flowers and their insect pollinators are a classic example of coevolutionnnn

paragraph about how genetic variation and environmental pressures can cause a change in population just a simple paragraph

Answers

Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.

Initial evidence is usually gathered by using your _____

Answers

Initial evidence is usually gathered by using Collection tools
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