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S_A_V [24]
3 years ago
6

?Which word in the sentence is the predicate nominative? A killer whale is a mammal with a black body and white patches. A. mamm

al B. body C. patches D. whale
Biology
1 answer:
Lera25 [3.4K]3 years ago
8 0
The answer is A, 'a mammal' because it goes with the copulative verb 'to be', i. e., 'is'.
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Pls help, it’s 9th grade.
lara [203]

Answer:

its either C or D, im not sure bc im in 6th

Explanation:

8 0
3 years ago
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Which step in the Gram stain is the critical step in differentiating Gram negative cells from Gram positive cells?
rewona [7]

Answer:

The rapid decolorization with ethanol or acetone

and counterstaining with safranin

When a decolorizer such as alcohol or acetone is added, it interacts with the lipids of the cell membrane. A gram-negative cell loses its outer lipopolysaccharide membrane, and the inner peptidoglycan layer is left exposed: when safranin is added they will turn red. Conversely, gram-positives retain the Cristal violet and will color in purple

5 0
3 years ago
A tall pea plant (TT) is crossbred with a short pea plant (tt). The Punnett square below shows the separated alleles for two pea
musickatia [10]
Hi there! 

Using the image below, you can see that all of the boxes are Tt, or heterozygous. Therefore, 1 = Tt, 2 = Tt, 3 = Tt, and 4 = Tt.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!

6 0
3 years ago
Read 2 more answers
Explain why DNA requires structural robust and efficient storage and organization mechanisms/structures.
wel

Answer:

DNA packaging contributes to the compaction of the genetic material into cells that are many times smaller and also regulates gene expression and cell replication in living systems.

Explanation:

DNA is a fundamental molecule that contains instructions that make each organism unique. Each chromosome is composed of a very long linear DNA molecule associated with histone proteins that compact the genetic material, which is known as DNA packaging. Transcription and replication require that both strands of the DNA separate. Nonetheless, during DNA packaging, nucleosomes and the folding into chromatin fibers ensure chromosomal DNA is correctly packaged inside smaller nuclei. In consequence, DNA packaging not only enables the compaction of long linear DNA into the cells but also is involved in key biological processes such as gene regulation (transcription) and cell replication.

3 0
3 years ago
Within the inner membrane of a chloroplast, interconnected sacs of membrane called ________ are suspended in a thick fluid calle
antiseptic1488 [7]

Answer:

Thylakoids, stroma

Explanation:

The interconnected flattened sacs within the inner membrane of the chloroplast are called thylakoid. Many thylakoids are come together and get arranges in a stack called a granum.

Thylakoid contains chlorophyll pigment and is responsible for absorbing the sunlight and conducting light reaction. These thylakoids or grana are suspended in a liquid called the stroma.

The stroma contains the enzymes which are required in the light-dependent reaction. It contains DNA, ribosome, starch. The synthesis of organic molecules occurs in the stroma.

3 0
3 years ago
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