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3 years ago

Help will mark brainlist

Biology

1 answer:

KengaRu [80]3 years ago

8 0

.dont taste or sniff chemical

Tasting and smelling some chemicals can be dangerous and even deadly.the best way to know what is in a container is to label

. Don't play mad scientists

This result in mixing chemcals to see what happens the result could be explosion ,fires,or releasing toxic chemicals

.Dress for the lab

This is a safety rule because clothing is one of your best form of protection against an accident wear covered shoes,long pants,and keep your hair tied so it cant fall into your experiment

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For this assignment, you will develop a model to describe the cycling of matter and the flow of energy

Zarrin [17]

Answer:

All I can tell you is when energy is moves through the food web it gets divided by 10

plant energy =1 0,000 (example)

that plant gets eaten by a small animal

small animal's energy gained from the plant = 1,000

a large animal then eats the smaller one

large animal's energy gained from the small animal = 100

Explanation:

I am sorry you will have to write your two short paragraphs on your own.

I don't want you to get in trouble for plagiarism.

I'm super sorry I hope this helped a bit!

3 0

2 years ago

in a plant algae, fungi, and most bacteria cells, there is a rigid layer that surrounds the cell membrane and gives protection,

Anon25 [30]

It is called the cell wall. It provides rigidity to the cell.

4 0

3 years ago

Which statements differentiate DNA and RNA

svetoff [14.1K]

RNA has a ribose sugar instead of deoxyribose sugar like DNA. RNA neucleiotides have a uracil base instead of thymine.

6 0

3 years ago

Two true-breeding stocks of pea plants are crossed. One parent has red, axial flowers and the other has white, terminal flowers;

gogolik [260]

Answer:

187.5 or rounded off to 188 white, terminal flowers

Explanation:

Let red=R and white=r where R>r; axial=A and terminal=a where A>a

The parents are true-breeding which means that they are homozygous.

P: RRAA x rraa

F1: RrAa

We then cross two plants from the F1 generation

RrAa x RrAa

To find out the probability we look at the different traits individually

Rr x Rr

yielding 1/4 RR (red), 1/2 Rr (red), 1/4 rr (white)

Aa x Aa

yielding 1/4 AA (axial), 1/2 Aa (axial), 1/4 aa (terminal).

We determine which F2 genotypes would allow for red, terminal flowers.

RRaa and Rraa

Then we use the multiplication rule to determine the probability of these occurring

RRaa: 1/4 x 1/4 = 1/16

Rraa: 1/2 x 1/4 = 1/8

Next we use the addition rule

1/16 + 1/8 = 3/16

To find out the number of these plants within the 1000 F2 plants we multiply the probability with 1000

3/16 x 1000= 187.5 red, terminal flowers

8 0

3 years ago

What pair of statements about Blehert's and Behr's work represent an observation that was first made directly in the field and t

Nadusha1986 [10]

Answer:

The correct answer are option A. "A microbiologist with the U.S. Geological Survey grew crescent-shaped fungal spores in a lab on refrigerated plates" and option C. "A specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose".

Explanation:

Doctor Blehert and Doctor Behr are two scientists that are studying the relationship between fungal disease and the development of the bat white nose syndrome. In order to prove that bat white nose syndrome is caused by a fungal disease Blehert and Behr first took samples in the field and later analyzed the samples in the laboratory. First, a specialist with the New York State Health Department detected crescent-shaped fungal spores when examining a sample swabbed directly from a living bat with a white nose. Later, the samples taken from the shaped fungal spores were grew in the laboratory on refrigerated plates by a microbiologist with the U.S. Geological Survey. After analyzing the samples, the scientists conclude that the bat white nose syndrome is caused by a fungal disease.

5 0

3 years ago