if a geologist finds a rock while in the field chances are high tjat the rock contains. A iron. B carbon. C potassium. and D silicon.

Answers

Answer 1

Answer:

The correct answer is option D, Silicon

Rocks are basically made up of elements which are abundant in the Earth’s crust. Since Earth’s crust has rich reserves of silicon and oxygen, it is made up of silicate minerals. The silicate minerals are basically of two types – light (70 % Silica content) and dark (50 % silica content) silicates. Light silicates are knows as quartz, muscovite and feldspar and Dark silicates includes ferromagnesian (consisting of iron and magnesium).

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All about one event would occur during meiosis 1

Answers

In meiosis, the chromosome or chromosomes duplicate (during interphase) and homologous chromosomes exchange genetic information (chromosomal crossover) during the first division, called meiosis I. The daughter cells divide again in meiosis II, splitting up sister chromatids to form haploid gametes.

Explain how an immune response starts after a macrophage attacks a pathogen.

Answers

After the macrophage fails the Helper T Cell stimulates the B cells (create antibodies) if pathogen is extracellular and Cytotoxic T Cells (killer T cells, release perforin) if pathogen is intracellular. Once the pathogen is killed the B Cells create Memory B Cells and the Killer T Cells create memory T Cells.
Hope that's helpful.

Sodium has 11 protons and 12 neutrons. How many electrons does it have?

Answers

11 Electrons.

So in total it has 11 protons, 12 neutrons, and 11 electrons. Your welcome!

A small fish eats plant material. Later that day, a heron dives into the water and eats the small fish.Which type of organism does the small fish represent in this scenario?

parasite
predator
prey
producer

Answers

Prey because some type of animal or person go eat the small fish that why it is a prey

Answer:

Prey

Explanation:

The small fish is a prey since a predator(Heron) eats it.

Give an example of two organisms that compete for the same resources

Answers

Eagles and hawks both compete for the same prey. They both seek small things like mouses, snakes, etc.

Make me brainliest answer if this helped you!

Two birds compete for snakes

What happens when the sun is blocked

Answers

If a shadow was cast over the entire earth. We would die. How fast?
Well if the shadow was cast by something being directly in front of thesun at its surface (that's a pretty darn big "something") then it wouldprobably take about 1 hour for everyone to die. 8 minutes for us to seethe sun get blocked out and for the light to stop hitting the earth.Another 52 minutes for the entire atmosphere to cool... well freeze...then everyone would die. The temperatures would plummet fast enough tofreeze a layer of ice over all the oceans in a few hours. People couldsurvive this if they had warning, although there would be no habitableworld to come back to.

You need to understand that, without any sunlight, the earth wouldplummet to at least about -171º C. that's -279º F. What keeps us warm isthe fact that one side of the planet ALWAYS has sunlight. + we haveoceans and atmosphere to distribute heat. But if both sides of theearths atmosphere had to be subjected to those temperatures, it wouldsimply freeze the more and more of the atmosphere until it got to thelevel that you breath O2 at. The oceans would cool much too fast tosustain any heat distribution and the ice caps would grow faster andfaster and faster until the earth is frozen over.

My estimate is about 1 hour for ground level temperatures to hit a critical life threatening level

the earth will not be able to get it sun and that if the earth dont hsave it sun
it will always e night

Other Questions

Which of the following describes cytoplasm? 1.)an organelle containing enzymes for storing energy 2.)the core of a cell where genetic material is stored and duplicated 3.)a thick liquid residing between the cell membrane holding all the cell's organelles, except for the nucleus. 4.)a membrane network involved in the synthesis and transport of cellular materials

What was the purpose of miller and urey's experimentA. to find out how biological molecules could have first formed B. to find out if prokaryotes have genetic informationC. to find out if DNA carries genetic informationD. to find out if the protists evolved from the eukaryote

which organelle should be listed under "both" in the diagram plants and animals ?A. CentriuleB. MitochondrionC. ChloroplastD. Cell wall

A fox hunts a rabbit. When the fox captures the rabbit, he consumes it. What is the primary reason for this organism interaction?