All categories

3 years ago

Which of the following is true of conifers

Biology

1 answer:

irinina [24]3 years ago

8 0

It is true that the gametophytes grow directly from the sporophyte

Answer: Option C

Explanation:

Conifers are distinct by the presence of evergreen needle shaped leaves and seeds that are generally attached to the cone. The conifers are generally pines which grow into tall trees and bonsai varieties are the smallest. They do not produce seeds in the fruits like other trees rather store it in a thick woody cone where it can be protected during forest fires.

In conifers the process from pollination to fertilization takes about a year. The plant in which the gametophyte grows is called as the sporophyte. This sporophyte is where the male and female gametes fuse together to form the first cells the zygote. Then this zygote develops into a seed. This seed is then disbursed through wind and end up forming a new baby plant called the sporophyte.

You might be interested in

1. In eukaryotic flagella, the fibers that slide past one another due to the activity of dynein proteins are microtubules. 2. Ma

yulyashka [42]

Answer:

1) In eukaryotic flagella, the fibers that slide past one another due to the activity of dynein proteins are microtubules.

2) Many cell organelles, most notably the nucleus, are anchored by intermediate filaments which are assembled from a diverse class of proteins.

3) Centrosomes are sites where protein dimers assemble into microtubules.

4) The extension of pseudopodia in amoeba is due to the regulated assembly and destruction of microfilaments.

5) The only cytoskeletal fibers not associated with intracellular movement or whole cell locomotion are the intermediate filaments.

6) During muscle contractions, myosin motor proteins move across tracks of microfilaments.

Explanation:

The cytoskeleton is a very important element of the cell, and is composed of three different structures: microtubules, intermediate filaments, and microfilaments.

Microtubules are structures in the shape of hollow tubes that give shape to the cell. Microtubules also participate in cell motility by providing a route for the organelles to move through.

Intermediate filaments are the only ones that do not participate in cell motility: their main function is to provide mechanical support for the plasma membrane.

Microfilaments are a key component in cell motility, and also associate with myosin (a protein) to produce muscle contraction. Microfilaments also give the cell the ability to grow pseudopods.

4 0

4 years ago

Read 2 more answers

Which can be a genetic disease that requires control of insulin levels?

sashaice [31]

Diabetes. My dads a doctor Ik for sure if u need an explaination i will send one

4 0

3 years ago

Read 2 more answers

During inflammation, __________ may be released and act as a vasodilator.

notka56 [123]

Histamine might be released for the blood vessels. This will cause them to constrict and stop the inflammation. When an allergen is taken in by the body, this causes the system to release the histamine as a way of helping those blood vessels dilate and lower a person's blood pressure.

4 0

3 years ago

Why are viruses considered nonliving but bacteria are considered living? Give two reasons.

nikklg [1K]

Answer:

1-Viruses also lack the properties of living things: They have no energy metabolism, they do not grow, they produce no waste products, and they do not respond to stimuli.

2-They also don't reproduce independently but must replicate by invading living cells.

7 0

3 years ago

Read 2 more answers

Two different recording stations have found that they had the same value for T after an earthquake. If this is all the informati

igor_vitrenko [27]

They can conclude that the epicenter is the same distance from both recording stations.

7 0

3 years ago

Read 2 more answers