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kirza4 [7]
3 years ago
11

How do the atmospheric conditions near the beginning of the Precambrian time contrast with the atmospheric conditions that are p

resent now? Which organism is largely responsible for this change?
Biology
1 answer:
BartSMP [9]3 years ago
3 0

"How do the atmospheric conditions near the beginning of the Precambrian time contrast with the atmospheric conditions that are present now? Which organism is largely responsible for this change?"

Suggestion: maybe Alexa, Google, etc...

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(31) The rough endoplasmic reticulum (A) has ribosomes bound to it (B) is part of the membrane system found throughout the cell'
worty [1.4K]

Answer:

(D) all of the above

Explanation:

The rough endoplasmic reticulum is part of the endoplasmic reticulum, the other one is known as the smoother endoplasmic reticulum.

1. This rough endoplasmic reticulum is considered rough because it has ribosomes bound to it.

2. Also, it is part of the membrane system found throughout the cell's cytoplasm, even though its density is considered to be higher in some places, such as near the nucleus.

3. It is also is connected to the nuclear envelope or membrane

Some of its functions include

1. It produces antibody in certain leukocytes

2. It produces insulin in pancreatic cells

Hence, in this case, the correct answer is Option D "all of the above."

4 0
3 years ago
Proteins can not be transported by carrier proteins through cell membranes because
Maslowich

Answer:

The answer is B - proteins are large molecules

4 0
3 years ago
What would be the outcome of crossing two strains of wingless flies that belong to the same complementation group?
STALIN [3.7K]

Answer:

Wingless offspring

Explanation:

Complementation is the terminology used for finding difference in the mutation of same or different gene.  

Two groups with same complementation have failed to complement each other.  

Thus, two wingless flies will have the same genotype i.e “ww”

When two wingless flies are crossed following offspring are produced  

ww * ww  

ww, ww, ww, ww

All the offspring are wingless too

8 0
3 years ago
Bacillus anthracis, the bacterium that causes the deadly disease anthrax produces thick endospores. What is the significance rol
egoroff_w [7]
The significant role of spore formation in the reproductive cycle of this bacterium would be to allow the bacteria to survive in extreme conditions. The spore formed is called an endospore which is a thick cover made of protein. These spores are mostly resistant to heat and chemicals which makes the bacteria survive in harsh conditions. Spores can only be destroyed by sterilization and it require very high pressures and very temperatures. In microbiology and medical settings, this process is usually done in a device known as the autoclave. Sterilization is a process that involves the killing of all microorganism in a system whether it is harmful or beneficial.
5 0
3 years ago
Animals that arose later in evolutionary history share which characteristic? Flagellated cells Cells organized into tissues Radi
BlackZzzverrR [31]

Answer:

Cells organized into tissues

Explanation:

cells in complex multicellular organisms like people are organized into tissues, groups of similar cells that work together on a specific task

5 0
3 years ago
Read 2 more answers
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